It (Minecraft java option on launcher) does not allow me to sign on even though I could easily do it pre-1.19. It asks me to make a username but in pre-1.19 my username was my Microsoft account name. this may be another issue, but it says, "cannot check available usernames". what is happening?
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We're tracking this issue in MCL-20496, so this ticket is being resolved and linked as a duplicate.
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